28 citations
3 papers
quant-ph2003
Anomalous quantum states in finite macroscopic systems
Akira Shimizu, Takayuki Miyadera, Akihisa Ukena
We consider finite macroscopic systems, i.e., systems of large but finite degrees of freedom, which we believe are poorly understood as compared with small systems and infinite sys…
quant-ph2003
On energy-momentum spectrum of stationary states with nonvanishing current on 1-d lattice systems
Takayuki Miyadera
On one-dimensional two-way infinite quantum lattice system, a property of translationally invariant stationary states with nonvanishing current expectation is investigated. We cons…
quant-ph2003★ 28 cited
On Halting Process of Quantum Turing Machine
Takayuki Miyadera, Masanori Ohya
We prove that there is no algorithm to tell whether an arbitrarily constructed Quantum Turing Machine has same time steps for different branches of computation. We, hence, can not…